Key Differences

The driver size differs between the two (13 mm vs 10 mm), which can influence sound depth, bass response, and overall audio clarity. boAt Airdopes 138 uses Bluetooth 5.0+EDR while boAt Airdopes 121v2 Plus supports Bluetooth 5.3, which can impact connectivity stability and efficiency. Battery life varies between the two (3 / 12 Hours vs 50 Hours), which affects how long you can use them on a single charge. boAt Airdopes 138 and boAt Airdopes 121v2 Plus are well-known options in the wireless headphone segment, offering a balance of audio quality, battery performance, and smart features. Both models feature noise cancellation, helping reduce background noise for a more immersive listening experience. Overall, both headphones are feature-rich and cater to users looking for a combination of sound quality, comfort, and wireless convenience. Both models provide a wide frequency range, delivering a balanced audio experience across different types of content. Both headphones are designed for comfort and can be used for extended listening sessions without major discomfort.

Verdict: Both headphones offer strong performance, and the right choice depends on your priorities such as battery life, comfort, and noise cancellation.